Introduction; Technical Data; Physical Data - ABB SafeLink Installation And Operating Instructions Manual

abb
SLMIO ver 2.12
This manual provides all details needed to install and operate the SafeLink ring main
unit. The SafeLink unit is designed for use on distribution systems operating at up to
12kV. SafeLink is available in several configurations based on ring and fuse protected
switches: e.g. CFC, CCC, CCF; where C denotes a load break switch and F a 200A
switch-fuse combination.
SafeLink units can be supplied with direct busbar connections (D) in place of load break
switches to allow SafeLink units to be joined. For example, units configured as CFD
and DFC, when joined, will give two ring switches and two switch-fuse combinations.
Each switch is in the form of a three-position switch giving on, off and earthed
conditions with respect to the connected cable. The status of each switch is indicated by
the symbol visible in the round hole towards the top of the mimic panel and confirmed
by the mimic diagram. Active flags in the diagram match the circuit condition with
black confirming open switches and white indicating switches that are closed. Access to
the cable box and fuse compartment is interlocked with the switch status.
The operating handle is designed to give a delay between switching operations.
Insertion of the operating handle is controlled by a rotary selector, which has one of
three possible states:
1. Handle access blocked.
2. Switching between off and on and switch-fuse reset possible.
3. Switching between off and earth possible.
The selector handle can be padlocked in any of these three positions.
General arrangement (Figure 2) and foundation plan (Figure 3) drawings are shown on
page 4.

1.1 Technical Data

1.1.1 Physical Data

Dimensions
(SafeLink unit with ABB Stand)
Width:
Height:
Depth:
Weight:
Operating Conditions
Normal Ambient Temperature: -25°C to +40°C
Altitude:
Installation:
Standard indoor RMU
Mounted in Outdoor
Enclosure
Insulating Gas
Type:
ABB Ltd, Switchgear Division, Auckland, New Zealand
SF Insulated Ring Main Unit
6
Installation and Operating Instructions

1 Introduction

720mm
1350mm
700mm
250kg
Up to 1000m above sea level
Indoor or outdoor with an enclosure
IP43
IP55W
SF6 (IEC 60376)
SafeLink
1